The beading machines of TRIS series have a machine body rotating around a base, in order to facilitate the processes requiring roller change; this series is equipped with three working heads, and so, with three couples of rollers with different shape, allowing to make processes that are complex and require a sequence of steps (for example, hemming valves boxes, sheets hemming, tapering and joining tubes and curves, etc.).
TRIS BEADING MACHINES present two versions, according to the rollers diameter.